METHOD OF COMPRESSING GRAPHICS FILES Russian patent published in 2013 - IPC G06T3/40 

FIELD: information technology.

SUBSTANCE: number of possible gradations to reduce geometric dimensions of a source frame is set, its geometric dimensions are reduced by the value of a first gradation, compressed, decompressed and increased to the original size; the peak signal-to-noise ratio is determined and compared with a preset value, wherein if the obtained value exceeds the set value, all operations are repeated for the second and subsequent gradations until the peak signal-to-noise ratio is less than or equal to the set value.

EFFECT: improved identification, authentication and tracking of product items.

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